自定义Dialog弹框和其背景阴影显示方法

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:id="@+id/content_layout"
 android:layout_gravity="center"
 android:gravity="center">
 
 <LinearLayout
  android:background="@drawable/dialog_content_white_with_radius"
  android:layout_marginLeft="40dp"
  android:layout_marginRight="40dp"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:orientation="vertical"
  android:gravity="center">
  <TextView
   android:id="@+id/dialog_content_text"
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:text="info"
   android:textSize="@dimen/size40"
   android:textColor="@color/word_color_444444"
   android:padding="10dp"
   android:gravity="center"/>
  <View
   android:layout_width="match_parent"
   android:layout_height="0.5dp"
   android:background="@color/divide_line"/>
  <TextView
   android:paddingTop="10dp"
   android:paddingBottom="10dp"
   android:id="@+id/tv_sure"
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:gravity="center"
   android:textColor="@color/main_color"
   android:text = "确定"
   android:textSize="@dimen/two_level_word"
   />
 </LinearLayout>
 
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
 
 <solid android:color="@color/wirte_ffffff" />
 
 <corners
  android:bottomLeftRadius="8dp"
  android:bottomRightRadius="8dp"
  android:topLeftRadius="8dp"
  android:topRightRadius="8dp" />
</shape>

 /** [Description]
 * 只有确认button
 * [How to use]
 *
 * [Tips]
 *
 * Created by lan.zheng on 2017/7/25 18:26.
 */
 
public class SureClickDialog extends Dialog {
 private Listener mListener;
 
 public SureClickDialog(Context context) {
  super(context);
 }
 
 public SureClickDialog(Context context, String content, Listener listener){
  super(context, R.style.custom_dialog_style);
  mListener = listener;
  View contentView = LayoutInflater.from(context).inflate(R.layout.dialog_have_been_sign_section_show, null);
  TextView contentTextView = (TextView) contentView.findViewById(R.id.dialog_content_text);
  contentTextView.setText(content);
  TextView sureButton = (TextView) contentView.findViewById(R.id.tv_sure);
 
  //消失监听
  this.setOnDismissListener(new OnDismissListener() {
   @Override
   public void onDismiss(DialogInterface dialog) {
    mListener.onDialogDismissListener();
   }
  });
  //确认
  sureButton.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View v) {
    dismiss();
    mListener.onSureListerner();
   }
  });
  setContentView(contentView);
 }
 
 public interface Listener {
  void onDialogDismissListener();
  void onSureListerner();
 }
}

 <style name="custom_dialog_style" parent="android:Theme.Dialog">
  <item name="android:windowFrame">@null</item>
  <item name="android:windowIsFloating">true</item>
  <item name="android:windowIsTranslucent">false</item>
  <item name="android:windowNoTitle">true</item><!--除去title-->
  <item name="android:backgroundDimEnabled">true</item><!--半透明-->
  <item name="android:windowBackground">@color/transparent</item><!--除去背景色-->
  <item name="android:radius">10dp</item>
 </style>

@Override
 public void show() {
  super.show();
  /**
   * 设置宽度全屏，要设置在show的后面
   */
  WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
  layoutParams.width= ViewGroup.LayoutParams.MATCH_PARENT;
  layoutParams.height= ViewGroup.LayoutParams.MATCH_PARENT;
  getWindow().getDecorView().setPadding(0, 0, 0, 0);
  getWindow().setAttributes(layoutParams);
 }

/**
 * [Description]
 * 只有确认button
 * [How to use]
 * new SureClickDialog()
 * [Tips]
 * isClickOutsideCanDismiss必须给值，true表示可点击外围消失，false表示不能
 * Created by lan.zheng on 2017/7/25 18:26.
 */
 
public class SureClickDialog extends Dialog {
 private Listener mListener;
 
 public SureClickDialog(Context context) {
  super(context);
 }
 
 public SureClickDialog(Context context, String content, boolean isClickOutsideCanDismiss,Listener listener){
  super(context, R.style.custom_dialog_style);
  mListener = listener;
  View contentView = LayoutInflater.from(context).inflate(R.layout.dialog_have_been_sign_section_show, null);
  LinearLayout linearLayout = (LinearLayout)contentView.findViewById(R.id.content_layout) ; //自定义布局的最外层
  linearLayout.setBackgroundColor(context.getResources().getColor(R.color.half_transparent));
  linearLayout.setOnClickListener(new View.OnClickListener() { //为其设置自定义点击监听
   @Override
   public void onClick(View v) {
    if(isClickOutsideCanDismiss){
     dismiss();
    }
   }
  });
  TextView contentTextView = (TextView) contentView.findViewById(R.id.dialog_content_text);
  contentTextView.setText(content);
  TextView sureButton = (TextView) contentView.findViewById(R.id.tv_sure);
 
  //消失监听
  this.setOnDismissListener(new OnDismissListener() {
   @Override
   public void onDismiss(DialogInterface dialog) {
    mListener.onDialogDismissListener();
   }
  });
  //确认
  sureButton.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View v) {
    dismiss();
    mListener.onSureListerner();
   }
  });
  setContentView(contentView);
 }
 
  @Override
 public void show() {
  super.show();
 
  WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
  layoutParams.width= ViewGroup.LayoutParams.MATCH_PARENT;
  layoutParams.height= ViewGroup.LayoutParams.MATCH_PARENT;
  getWindow().getDecorView().setPadding(0, 0, 0, 0);
  getWindow().setAttributes(layoutParams);
 }
 
 
 public interface Listener {
  void onDialogDismissListener();
  void onSureListerner();
 }
}